<!DOCTYPE html>
<html lang="en" style="height: 100%;">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <link rel="stylesheet" href="https://unpkg.com/purecss@1.0.1/build/pure-min.css" integrity="sha384-oAOxQR6DkCoMliIh8yFnu25d7Eq/PHS21PClpwjOTeU2jRSq11vu66rf90/cZr47" crossorigin="anonymous">
  <title>Fortuna</title>
  <style>
    .flex-box { display: flex; flex-direction: column; justify-content: center; align-items: center;height: 100%; }
    .flex-item { display: flex;}
    .pure-button{width: 100%;}
  </style>
</head>
<body style="height: 100%;">
  [__REPLACE__]
</body>
</html>